3.1.136 VerticalAxisGroup

List of axis numbers. In the case of alignment
grobs, this should contain only one number.

default-staff-staff-spacing (list):

'((basic-distance . 9) (minimum-distance . 8) (padding . 1))

The settings to use for
staff-staff-spacing when it is unset, for ungrouped staves
and for grouped staves that do not have the relevant
StaffGrouper property set (staff-staff-spacing or
staffgroup-staff-spacing).

nonstaff-unrelatedstaff-spacing (list):

'((padding . 0.5))

The spacing alist
controlling the distance between the current non-staff line and
the nearest staff in the opposite direction from
staff-affinity, if there are no other non-staff lines
between the two, and staff-affinity is either UP or
DOWN. See staff-staff-spacing for a description of
the alist structure.

outside-staff-placement-directive (symbol):

'left-to-right-polite

One of four directives
telling how outside staff objects should be placed.

left-to-right-greedy – Place each successive grob from left to
right.

left-to-right-polite – Place a grob from left to right only if
it does not potentially overlap with another grob that has been placed
on a pass through a grob array. If there is overlap, do another pass to
determine placement.

right-to-left-greedy – Same as left-to-right-greedy, but
from right to left.

right-to-left-polite – Same as left-to-right-polite, but
from right to left.

skyline-horizontal-padding (number):

0.1

For determining the
vertical distance between two staves, it is possible to have a
configuration which would result in a tight interleaving of grobs from
the top staff and the bottom staff. The larger this parameter is, the
farther apart the staves are placed in such a configuration.

When applied to a staff-group’s
StaffGrouper grob, this spacing alist controls the distance
between consecutive staves within the staff-group. When applied
to a staff’s VerticalAxisGroup grob, it controls the
distance between the staff and the nearest staff below it in the
same system, replacing any settings inherited from the
StaffGrouper grob of the containing staff-group, if there
is one. This property remains in effect even when non-staff lines
appear between staves. The alist can contain the following keys:

basic-distance – the vertical distance, measured in
staff-spaces, between the reference points of the two items when
no collisions would result, and no stretching or compressing is in
effect.

minimum-distance – the smallest allowable vertical
distance, measured in staff-spaces, between the reference points
of the two items, when compressing is in effect.

padding – the minimum required amount of unobstructed
vertical whitespace between the bounding boxes (or skylines) of
the two items, measured in staff-spaces.

stretchability – a unitless measure of the dimension’s
relative propensity to stretch. If zero, the distance will not
stretch (unless collisions would result).